Coin Glossary

You can find most popular coin collecting phrases in this coin glossary.

Coin Glossary

M

matte proof - matte proof coins are special proofs that have a grainy "sandblasted" look on the surface. Matte proof coins were sometimes made in the early part of the 1900's. Normal proof coins have a mirror like brilliant surface.

medal - an object made of metal that resembles a coin. Often medals are made or given to recognize a person, place, or occasion. Medals have no stated value and are not intended to circulate as money. Sometimes a medal may have intrinsic value (bullion value).

medium of exchange - something accepted by people as having a certain value that is used to exchange or trade. Often coins and paper money are used as mediums of exchange, but it can be anything.

mercury dime - nick name for the US 10 cent pieces made between 1916 and 1945. Although originally called the Winged Liberty Head dime the name "mercury" dime caught on with the public when it was compared to the Roman god "mercury".

milky - describes the appearance on the surface of a coin.  Usually a whitish area that is sometimes found on silver coins.  The appearance is that of a milk color stain.  Sometimes called a milk spot .

milled edge - coin production process that produces the edge of the coin.

mint - place where coins are produced (manufactured). The U.S. Mint produces most coins for the U.S. government in Philadelphia and Denver. Mint facilities in San Francisco and West Point are used to produce some of the Proof and commemorative coins.

mint luster - a frosty, satiny, unique shine found on uncirculated coins

mint mark - a small letter on a coin that identifies which of the U.S. Mints the coin was produced at.

mint restrike – any coin restruck at the mint whose purpose is uncertain of which original strikings from these dies exist. Clearly, most of these are in fact fantasy pieces.

mint set - a complete set of coins produced by a particular mint (contains one of each denomination).  Mint sets usually contain "uncirculated" non-proof coins. 

mint state  - uncirculated

mintage - the number of coins produced (the quantity made for that country, date, mintmark, and type of coin)

Morgan dollar - United States silver dollar made during some of the years 1878 to 1921. Originally called the "Liberty Head" silver dollar.  It developed the nickname " Morgan" dollar after the US mint engraver George T. Moran, who designed it.

motto - a saying, phrase, or principle sometimes found on a coin. Example: "In God We Trust", and "E Pluribus Unum"-meaning: Out of many, are one

MS69 - The attribute "MS" is an abbreviation for "mint state".  The numbers that follow (in this example 69) indicate the quality of the coin.  The quality numbers run from 1 to 70, with a 70 being an absolutely prefect coin.  See Coin Grading

mylar - a clear trademark polyester material used to store coins.

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Coin Collecting News
12/12/2019
Padua Franciscan High School’s Coin Wars raises more than $11,000 for charity
PARMA, Ohio -- Padua Franciscan High School has no problem being nickel and dimed (and quartered) during its annual Coin Wars competition. This year, students collected $11,194 in less than 20 minutes ... more info

12/10/2019
Gold coin donor strikes again in Naperville, $1,600 Krugerrand found in Salvation Army kettle at Casey’s Foods
A Christmas tradition in Naperville for 20 years or more continued Tuesday when an anonymous donor dropped a gold coin into the Salvation Army Red Kettle outside Casey’s Foods. The one-ounce 1978 ... more info

12/11/2019
$1,600 gold coin dropped into Salvation Army kettle in Naperville by anonymous donor
“While we don’t know who the donor is, we do know the hope their gift provides,” a Salvation Army officer said. Someone dropped a $1,600 gold coin into a Salvation Army’s red kettle on Tuesday in west ... more info